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authorLucas Stach <l.stach@pengutronix.de>2017-02-25 01:58:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-25 04:46:55 +0300
commite2f466e32f56c8b3ee0d1a40cc39e1c779dfd598 (patch)
treef37685b18f07689ed884b912f226b9a19c320e7a /include/linux/cma.h
parentca96b625341027f611c3e61351a70311077ebcf5 (diff)
downloadlinux-e2f466e32f56c8b3ee0d1a40cc39e1c779dfd598.tar.xz
mm: cma_alloc: allow to specify GFP mask
Most users of this interface just want to use it with the default GFP_KERNEL flags, but for cases where DMA memory is allocated it may be called from a different context. No functional change yet, just passing through the flag to the underlying alloc_contig_range function. Link: http://lkml.kernel.org/r/20170127172328.18574-2-l.stach@pengutronix.de Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Radim Krcmar <rkrcmar@redhat.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Alexander Graf <agraf@suse.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/cma.h')
-rw-r--r--include/linux/cma.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 6f0a91b37f68..03f32d0bd1d8 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -29,6 +29,7 @@ extern int __init cma_declare_contiguous(phys_addr_t base,
extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
unsigned int order_per_bit,
struct cma **res_cma);
-extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align);
+extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
+ gfp_t gfp_mask);
extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count);
#endif